diff --git a/.gitignore b/.gitignore
index da3e75e..37a33f1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,4 @@ Makefile
 /lib
 /engine/obj
 /engine/lib
+/engine/doc
diff --git a/engine/Doxyfile b/engine/Doxyfile
new file mode 100644
index 0000000..73f0835
--- /dev/null
+++ b/engine/Doxyfile
@@ -0,0 +1,23 @@
+PROJECT_NAME = "GoldFish Engine"
+OUTPUT_DIRECTORY = doc
+TAB_SIZE = 8
+OPTIMIZE_OUTPUT_FOR_C = YES
+MARKDOWN_SUPPORT = YES
+EXTRACT_ALL = NO
+FILE_PATTERNS = *.h
+RECURSIVE = YES
+INPUT = include graphic *.c README.md
+SOURCE_BROWSER = YES
+HTML_DYNAMIC_MENUS = YES
+GENERATE_TREEVIEW = YES
+FULL_SIDEBAR = NO
+DISABLE_INDEX = NO
+HAVE_DOT = NO
+PROJECT_LOGO = "goldfish.png"
+PROJECT_BRIEF = "Quite simple and lightweight game engine"
+GENERATE_MAN = NO
+USE_MDFILE_AS_MAINPAGE = "README.md"
+FULL_PATH_NAMES = YES
+ENABLED_SECTIONS = YES
+OUTPUT_LANGUAGE = "English"
+GENERATE_LATEX = NO
diff --git a/engine/goldfish.png b/engine/goldfish.png
new file mode 100644
index 0000000..a1c5480
Binary files /dev/null and b/engine/goldfish.png differ
diff --git a/texture/test.bmp b/texture/test.bmp
index e2e3298..eb3c165 100644
Binary files a/texture/test.bmp and b/texture/test.bmp differ